The essentials
Replacing a blown fuse Fig. 62
Image of a blown fuse Fig. 63
Removing or fitting a fuse Preparation
● Switch off the ignition, lights and all elec-
tric al
equipment
.
● Open the corresponding fuse box
›››
page 42 Identifying a blown fuse
A fuse i
s blown if its metal strip is ruptured
››› Fig. 62.
● Point a lamp at the fuse to see if it has
blown.
T
o replace a fuse
● If necessary, remove the plastic pincers
from the fu
se box cover.
● Small fuses: lock the pinc
er in from above
››› Fig. 63 A.
● Larger fuses : move the pinc
er sideways
over the fuse ››› Fig. 63 B.
● Remove the relevant fuse.
● Replace the blown fuse by one with an
identica
l amperage rating (same colour and
markings) and identical size.
● Replace the cover.
Bulbs Bul
bs (12 V) Full-LED headlights are designed to last the
lif
etime of
the c
ar and light bulbs cannot be
replaced. In case of headlight failure, go to
an authorised workshop to have it replaced.
Light source used for each function
Halogen headlightsType
Dipped beam headlightsH7 LL
Main beam headlights/day-
time running lights (DRL)H15 (double element)
Side lightsW5W
Turn signalPY21W NA LL
AFS bi-xenon main head-
lightType
Daytime running lights (DRL)P21W SLL
Side lightsW5W
Turn signalPY21W NA LL
Dipped beam / Main beamXenon bulb. Visit an
authorised workshop
for replacement.
Front fog lightType
Fog lightsHB4
LED rear lightsType
Side/brake lightLED
Turn signalWY21W
Reverse lightsW16W 43
The essentials
2. Connect one end of the re
d jump lead to
the positive + terminal of the vehicle
w ith the fl
at
battery A
› ››
Fig. 76
.
3.
Connect the other end of the red
jump
lead to the positive terminal + in the ve-
hic l
e pr
oviding assistance B .
4. For vehicles without Start-Stop system:
connect
one end of
the black jump lead to
the negative terminal – of the vehicle
pr o
v
iding the current B
› ››
Fig. 76
.
– F
or vehicles with Start-Stop system: con-
nect one end of
the black jump lead X to a
s uit
ab
le ground terminal, to a solid piece of
metal in the engine block, or to the engine
block itself ››› Fig. 77.
5. Connect the other end of the black
jump
lead X to a solid metal component bolted
t o the en
gine b
lock or to the engine block
itself of the vehicle with the flat battery.
Do not connect it to a point near the bat-
tery A .
6. Position the leads in such a way that they cannot
c
ome into contact with any moving
parts in the engine compartment.
Starting
7. Start the engine of the vehicle with the boostin
g battery and let it run at idling
speed. 8. Start the engine of the vehicle with the flat
batter
y and wait for 2 or 3 minutes until
the engine is running.
Removing the jump leads
9. Before you remove the jump leads, switch off the dipped be
am headlights if they are
switched on.
10.Turn on the heater blower and heated rear window in the
vehicle with the flat battery.
This helps minimise voltage peaks which
are generated when the leads are discon-
nected.
11.When the engine is running, disconnect the lea
ds in reverse order to the details
given above.
Make sure the battery clamps have sufficient
metal-to-metal contact with the battery termi-
nals.
If the engine fails to start, switch off the start-
er after about 10 seconds and try again after
about 1 minute. WARNING
● Ple a
se note the safety warnings referring to
working in the engine compartment
››› page 272.
● The battery providing assistance must have
the same v
oltage as the flat battery (12V) and
approximately the same capacity (see imprint on battery). Failure to comply could result in
an exp
lo
sion.
● Never use jump leads when one of the bat-
teries
is frozen. Danger of explosion! Even af-
ter the battery has thawed, battery acid could
leak and cause chemical burns. If a battery
freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes
awa
y from batteries, danger of explosion.
Failure to comply could result in an explo-
sion.
● Observe the instructions provided by the
manufact
urer of the jump leads.
● Do not connect the negative cable from the
other vehic
le directly to the negative terminal
of the flat battery. The gas emitted from the
battery could be ignited by sparks. Danger of
explosion.
● Do not attach the negative cable from the
other vehic
le to parts of the fuel system or to
the brake line.
● The non-insulated parts of the battery
clamp
s must not be allowed to touch. The
jump lead attached to the positive battery
terminal must not touch metal parts of the ve-
hicle, this can cause a short circuit.
● Position the leads in such a way that they
cannot c
ome into contact with any moving
parts in the engine compartment.
● Do not lean on the batteries. This could re-
sult
in chemical burns. » 53
Emergencies
Control lamp It lights up
A vehicle exterior
lighting bulb is not
working.Replace the faulty bulb.
Several warning and indication lamps light
up for a f
ew sec
onds when the ignition is
switched on, signalling that the function is
being verified. They will switch off after a few
seconds.
Checking the bulbs of a trailer
For vehicles with the factory fitted towing
bracket, certain trailer lights are also control-
led if the power socket is correctly connected.
A fault on a trailer turn signal is indicated on
the instrument panel by the turn signal blink-
ing twice as fast ( or ) ›››
page 130.
● General fault of all turn signals on one side.
● Fault in one rear light (on some models, al-
so the re gi
stration light).
● Fault in two brake lights. WARNING
Observe the safety warnings ›››
in Warning
and indication l amp
s on page 105. Note
A fault in the LED on the rear lights will not be
indicat ed. Ho
wever, if the fault affects all the
LEDs then this will be indicated by the control
lamp . To replace halogen headlight bulbs
Fig. 106
In the engine compartment: left-
h and s
ide he
adlight lining. A dipped beam
he a
dlights, B daytime driving lights and
C main beam headlights and side lights Fig. 107
Left headlight. There is no need to remove the headlight to
r
ep
l
ace bulbs.
Complete operations only in the sequence
given:
Turn signals (small bulb holder)
1.Open the bonnet ››› page 272.
2.Rotate the bulb holder 1 to the left all the way
and pull it out backwards together with the bulb.
3.Depending on the model, the bulb is removed di-
rectly from the bulb holder or it may need to be ro-
tated and then removed.
4.Replace the faulty bulb with a new identical bulb.
5.Place the bulb holder in the headlight and rotate
to the right all the way.
Dipped beam A and daytime lights B
1.Open the bonnet
››› page 272. 92
Emergencies Turn signals
1Turning lights 2
6.
Place the bulb holder in
the headlight and ro-
tate to the right all the
way.Place the bulb holder in
the headlight and pull
the wire clip upwards
until it clicks into place.
7.Rotate the cover
››› Fig. 108 in the opposite direc-
tion to the arrow as far as it will go. Always seek the help of a specialist when
ch
an
ging the Xenon dipped beam and main
beam headlamps ››› in Introduction on
pag e 91
. Note
The illustrations show the left hand head-
light. The s
tructure of the right hand side
headlight is symmetric. Replacing the front bumper bulbs
Fig. 110
On the right-hand side of the front
b umper: r
emo
ving the headlights. Fig. 111
Changing the bulbs in the head-
lights Complete operations only in the sequence
giv
en:
1.Pull the cover forwards, in the direction of the ar-
row
››› Fig. 110.
2.Unscrew the attachment screw ››› Fig. 110 1 us-
ing the screwdriver from the vehicle tool kit
››› page 82.
3.Tilt the headlight slightly forward and extract it
from its lateral attachments ››› Fig. 111 (small ar-
rows).
4.Release the connector ››› Fig. 111 1 and remove
it.
5.Rotate the bulb holder ››› Fig. 111 2 to the left all
the way, in the direction of the arrow, and pull it
out backwards together with the bulb.
6.Replace the faulty bulb with a new identical bulb.
7.Place the bulb holder in the headlight and rotate
to the right all the way.
8.Insert the connector ››› Fig. 111 1 on the bulb
holder 2. The connector must audibly click into
place.
9.Place the headlight into its position ››› Fig. 111
(small arrows) and tilt it backwards.
10.Tighten the attachment screw ››› Fig. 110 1 us-
ing the screwdriver.
11.Replace the cover on the bumper ››› Fig. 110. 94
Lights and visibility
The legal requirements regarding the use of
v ehic
l
e lights in each country must be ob-
served.
The driver is personally responsible for the
correct use and adjustment of the lights in all
situations.
In vehicles with tow hitch fitted as standard:
if the trailer is connected electrically and is
fitted with a rear fog light, the vehicle’s fog
light is automatically switched off.
Audible warnings to advise the driver that
the lights have not been switched off
If the key is not in the ignition and the driver
door is open, an audible warning signal is
heard in the following cases: this is a remind-
er to turn off the lights.
● When the parking light is on ›››
page 131.
● When the light switch is in position .WARNING
The side lights or daytime driving lights are
not bright enough t
o illuminate the road
ahead and to ensure that other road users are
able to see you.
● Always use your dipped beam head lights if
it is
raining or if visibility is poor. WARNING
If the headlights are set too high and the
main be am i
s not used correctly, there is a
risk of dazzling or distracting other road
users. This could result in a serious accident.
● Always make sure that the headlights are
correctly
adjusted.
● Never use the main beam or headlight
flasher when it
can dazzle others on the road. Turn signal and main beam lever
Read the additional information carefully
› ›
›
page 25
Convenience turn signals
For the convenience turn signals, move the
lever as far as possible upwards or down-
wards and release the lever. The turn signal
will flash three times.
The control turn signals are switched on and
off from the menu Lights & Visibility
on the instrument panel display
››› page 26. This function can be discon-
nected at a specialised workshop for those
vehicles which do not have the menu
Lights & Visibility . Note
● If the c on
venience turn signals are operat-
ing (three flashes) and the other convenience turn signals are switched on, the active part
st
op
s flashing and only flashes once in the
new part selected.
● The turn signal only works when the igni-
tion is sw
itched on. The hazard warning
lights also work when the ignition is switch-
ed off ››› page 82.
● If a turn signal on the vehicle or trailer is
faulty
, the warning lamp flashes twice as fast
as usual.
● The main beam headligh
ts can only be
switched on if the dipped beam headlights
are already on. Lights and visibility: functions
Parking light
When the p ark
in
g light is switched on, (right
or left turn signal), the front side light and
the rear light on the corresponding side of
the vehicle stay lit. The parking lights will on-
ly work with the ignition off.
Daytime running lights
The daytime running lights reduce the risk of
accidents by increasing the visibility of the
vehicle. These are independent lights that
are built into the headlights and come on
each time the ignition is turned on if the light
switch is in position or 0. »
131
Technical data
Advice
Operation
Emergencies
Safety
Operation
When the light switch is in position
, a
phot o sen
sor automatically turns the instru-
ment and switch lighting on and off.
Automatic dipped beam control
The automatic dipped beam control is merely
intended as an aid and is not able to recog-
nise all driving situations.
When the light switch is in position , the
vehicle lights and the instrument panel and
switch lighting switch on and off automatical-
ly in the following situations ››› :
Automatic switching
onAutomatic switching
off or switch to day-
time running lighting
The photo sensor detects
darkness, for example,
when driving through a
tunnel.When adequate lighting is
detected.
The rain sensor detects
rain and activates the
windscreen wipers.When the windscreen wip-
er has been inactive for a
few minutes.
Adaptive headlights (AFS)
The a
d
aptiv
e headlights only operate when
the dipped beam is on and at speeds of over
10 km/h (6 mph). On bends, the adaptive
headlights automatically improve lighting on
the road ahead.
The adaptive headlights can be switched on
and off from the infotainment system. Static cornering lights
When turning s
lowly to change direction or
going round a tight bend, the static cornering
lights automatically come on. The static cor-
nering lights only work at speeds of less than
40 km/h (25 mph).
The static cornering lights may be incorpora-
ted into the fog lights or the front headlights,
depending upon the equipment. WARNING
If the road is not well lit and other road users
cannot see the
vehicle well enough or at all,
accidents may occur.
● The automatic dipped beam control ( )
only sw
itches on the dipped beam when
there are no changes in brightness, and not,
for example when it is foggy.
● Never drive with daytime lights if the road
is not
well lit due to weather or lighting con-
ditions. Daytime lights do not provide
enough light to illuminate the road properly
or be seen by other road users.
● The rear lights do not come on with the
daytime driv
ing light. A vehicle which does
not have the rear lights on may not be visible
to other drivers in the darkness, if it is rain-
ing or in conditions of poor visibility. Headlight adjustment
Headlight adjustment (Light Assist)
The hea
dlight
adjustment automatically con-
nects and disconnects these lights depend-
ing on the environmental and traffic condi-
tions and on the speed, within the limitations
of the system ››› . This is monitored by a
sensor loc at
ed on the inside of the wind-
screen, above the interior rear vision mirror.
The automatic headlight adjustment auto-
matically switches on the lights depending
on the vehicles travelling in front and in the
opposite direction, and on other environmen-
tal and traffic conditions from an approxi-
mate speed of 60 km/h (37 mph) and turns
them off again at speeds below approximate-
ly 30 km/h (18 mph).
Switching on and off
Action
Switch-
ing on:– With the ignition on, turn the lights control
to the position and put the turn signal
and main beam lever in the main beam posi-
tion ››› page 131. When the headlight adjust-
ment (automatic lights also) is activated, the
warning lamp lights up in the dash panel
display
. 132
Lights and visibilitySwitch-
ing off:– Disconnect the on button.
– OR: turn the lights control to a different po-
sition to
››› page 130.
– OR: place the turn signal and main beam
lever in the headlight flasher or main beam
position ››› page 131. The following conditions can cause the head-
light a
dju
stment to fail to turn off the main
beam or fail to do so in time:
● On roads with insufficient lighting with very
reflectiv
e signs
● If road users are insufficiently lit up, e.g.
pedes tri
ans or cyclists.
● On closed curves, when the traffic in the
oppos
ite direction is partially hidden, on pro-
nounced slopes
● On roads with traffic in the opposite direc-
tion and with a centr
al reservation barrier
where the driver can see through gaps or
over it e.g. lorry drivers.
● If the camera is damaged or if the power
supp
ly has been cut off
● In the event of fog, snow or heavy rain
● In the event of dust or sand storms
● If the windscreen is damaged by the impact
from a st
one in the camera's field of vision
● If the camera's field of vision is misted up,
dirty or c
overed by a sticker, snow or ice. WARNING
The greater comfort that the headlight ad-
jus tment
provides (automatic also) must not
cause you to take risks. The system is not a
replacement for driver awareness.
● Always monitor the lights yourself and ad-
just
them depending on the light, visibility
and traffic conditions.
● The headlight adjustment (automatic also)
may
not correctly detect all situations and in
certain situations may only provide limited
function.
● If the windscreen is damaged or modifica-
tions ar
e made to the vehicle lighting, this
may harm the functioning of the headlight
adjustment (automatic lights also), for exam-
ple, if additional headlight are fitted. Note
Main beam and flashed headlights can be
turned on and off m
anually at any time with
the turn signal and main beam lever
››› page 131. “Coming home” and “Leaving home”
f
u
nction (guid
ance lights) The “Coming home” function should be
sw
it
c
hed on manually. However the “Leav-
ing home” function is automatically control-
led by a photo sensor.
“Coming home”: necessary operations
To switch
system on:
– Switch off the ignition.
– Briefly flash the headlights for approxi-
mately one second ››› page 131.
The “Coming home” lighting comes on
when the driver door is opened. The delay
in switching off the headlights is counted
from when the last door or boot hatch is
closed.
To switch
system off:
– Automatically at the end of the delay pe-
riod.
– Automatically, if 30 seconds after com-
ing on, a vehicle door or the boot hatch re-
mains open.
– When the light switch is turned to posi-
tion
.
– When the ignition is switched on.
“Leaving home”: necessary operations
To switch
system on:– Unlock the vehicle when the light switch
is in position and the photo sensor
detects darkness.
To switch
system off:
– Automatically, at the end of the delay
period.
– When the vehicle is locked.
– When the light switch is turned to posi-
tion
.
– When the ignition is switched on. Lighting around the exterior mirrors
The lightin
g ar
ou
nd the exterior mirrors illu-
minates the door area on entering and leav-
ing the vehicles. It comes on when the vehi-
cle is unlocked, when the vehicle door is »
133
Technical data
Advice
Operation
Emergencies
Safety
Operation
opened and when the “Coming home” or
“L e
av
ing home” function is switched on. If
the equipment includes the light sensor, the
lighting around the exterior mirrors only
comes when it is dark. Note
● The time tak en f
or the headlights to go off
can be changed in the Lights & Visibil- ity menu and the function can be switched
on or off ›››
page 26.
● When the “Coming home” function is on, if
the vehic
le door is opened there is no audible
warning signal to advise that the light is still
on. Hazard warning lights
Fig. 141
In the centre of the dash panel: push
b utt
on f
or hazard warning lights. Read the additional information carefully
› ›
›
page 25 Always fulfil legal requirements for securing a
broken do
wn vehicle. In a number of coun-
tries it is now obligatory, for example, to turn
on the hazard warning lights and use a re-
flective safety vest ››› page 82.
When being towed with the hazard warning
lights on, a change in direction or traffic lane
can be indicated as usual using the turn sig-
nal lever. The hazard lights will be interrup-
ted temporarily.
If your vehicle breaks down:
Park the vehicle a safe distance from
traffic and on suitable ground ››› .
T urn on the h
az
ard warning lights with
the button
› ›
› Fig. 141
.
Connect the electronic parking brake
››› page 189.
Move the selector lever to its intermedi-
ate position or to P ››› page 194.
Stop the engine and remove the key
from the ignition ››› page 185.
Have all occupants leave the vehicle and
move to safety, for example behind a
guard rail.
When leaving the vehicle, take all keys
with you.
Place an emergency warning triangle to
indicate the position of your vehicle to
other road users.
1.
2.
3.
4.
5.
6.
7.
8. Allow the engine to cool and check if a
speci
alist is required.
If the hazard warning lights are not working,
you must use an alternative method of draw-
ing attention to your vehicle. This method
must comply with traffic legislation. WARNING
A faulty vehicle in traffic represents a risk of
acc ident
for the driver and for other road
users.
● Stop the vehicle safely as soon as possible.
Park the
vehicle a safe distance from sur-
rounding traffic to lock all the doors in case of
an emergency. Turn on the hazard warning
lights to warn other road users.
● Never leave children or disabled people
alone in the v
ehicle if the doors are to be
locked. In case of an emergency, passengers
will be trapped inside the vehicle. Individuals
locked in the vehicle can be exposed to very
high or very low temperatures. WARNING
The components of the exhaust system reach
ver y
high temperatures. This could cause a
fire and considerable damage.
● Always park your vehicle so that no part of
the exhau
st system can come in contact with
flammable materials (such as dried grass or
fuel). 9.
134